PTC (Positive Temperature Coefficient) heating assembly and pool

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) heating assembly which comprises a non-metal shell which comprises a first cavity; the heating part is arranged in the first cavity, the heating part and the non-metal shell are arranged in a spaced mode in the first direction, the heating part comprises a metal shell and a plurality of installation cavities, a flow channel is formed between the metal shell and the non-metal shell, the installation cavities are enclosed in the metal shell to form a second cavity in the second direction, the installation cavities are not parallel, and the flow channel is communicated with the flow channel. Each mounting cavity extends along a third direction; and each heating assembly is correspondingly arranged in the corresponding mounting cavity. According to the utility model, the space occupied by the heating assembly can be reduced, and meanwhile, a good heating effect can be kept. The utility model further provides the pool.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, and particularly relates to a PTC heating component and a pool. Background Art

[0002] The massage pool has massage and leisure functions, and can help people relax physically and mentally during bathing. With the increasing improvement of people's living standards, the demand for household pools represented by massage pools is also more extensive.

[0003] The water in the pool is usually heated by a PTC (Positive Temperature Coefficient) heating element. The PTC heating element is also called a PTC heater, which has advantages such as constant temperature heating, no open flame, high heat conversion rate, extremely small influence by the power supply voltage, and long natural life, which are incomparable to traditional heating elements. Therefore, it has a wide application in various electric heating appliances.

[0004] In the prior art, the heaters used in pools occupy a large space and have disadvantages such as being inconvenient for installation and carrying. However, heaters with a small occupied space achieved by reducing the PTC heating element often have an unsatisfactory heating effect. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the heater occupies a large space. The utility model provides a PTC heating component, which can reduce the space required by the heating component and maintain a good heating effect at the same time.

[0006] To solve the above technical problems, an embodiment of the utility model discloses a PTC heating component, including:

[0007] A non-metallic housing, the non-metallic housing includes a first cavity;

[0008] A heating part, the heating part is arranged in the first cavity. Along a first direction, the heating part is spaced from the non-metallic housing. The heating part includes a metal housing and a plurality of installation cavities. A flow channel is formed between the metal housing and the non-metallic housing. Along a second direction, the plurality of installation cavities enclose a second cavity in the metal housing, the plurality of installation cavities are not parallel, and each installation cavity extends along a third direction;

[0009] A plurality of heating components, each heating component is correspondingly arranged in each installation cavity.

[0010] With the above technical solution, a plurality of installation cavities are arranged around the metal shell in the second direction, and each installation cavity extends in the third direction; each heating component is correspondingly arranged in each installation cavity. In this way, on the one hand, the plurality of heating components do not need to be arranged in parallel at intervals, and the space occupation can be reduced without reducing the number of heating components. At the same time, a flow channel is formed between the heating part and the non-metal shell, and the fluid in the flow channel can directly contact the metal shell of the heating part, so that a good heating effect can be maintained.

[0011] On the other hand, the plurality of installation cavities form a second cavity in the metal shell. During assembly, an expansion tooling can be inserted into the second cavity. The expansion tooling expands in the first direction towards the non-metal shell in the second cavity, and can simultaneously make the plurality of heating components fit with the installation cavities, without the need for individual fitting operations on the heating components, which can effectively improve work efficiency.

[0012] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating component, and each of the heating components is directly and fittingly arranged in each of the installation cavities.

[0013] With the above technical solution, the heating component can be fixed in the installation cavity without additional adhesive parts, etc., which can not only reduce the space occupation of the entire heating part, but also improve the assembly efficiency.

[0014] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating component, each of the installation cavities includes an end portion and a tail portion, the end portion of each installation cavity is adjacent to the tail portion of the adjacent installation cavity, and the projections of the plurality of heating components in the third direction are polygonal.

[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating component, and the projections of the plurality of heating components in the third direction are triangular.

[0016] With the above technical solution, it can not only reduce the space occupation of the heating component, but also achieve a good heating effect.

[0017] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating component, the heating part includes an insulating layer, the insulating layer is arranged on the surface of the metal shell, and the fluid flowing into the flow channel can contact the insulating layer.

[0018] With the above technical solution, a flow channel is formed in the first cavity of the non-metallic housing for fluid to pass through. This non-metallic housing can effectively accumulate heat and prevent heat from being conducted to the outside through the housing, thereby improving the heating efficiency. At the same time, an insulating layer is provided on the surface of the metal housing to enhance the corrosion resistance and high-voltage resistance of the heating device, and can also prevent scale from accumulating on the surface of the metal housing. The fluid flowing into the first cavity can be in full contact with the insulating layer, and even if it is soaked in water for a long time, it will not cause corrosion or leakage of the heating components.

[0019] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly. The insulating layer includes a polymer coating, and the polymer coating includes a liquid coating or a solid coating.

[0020] With the above technical solution, by utilizing the good corrosion resistance and high-voltage resistance of the polymer material, the use of the heater is further made safer and more reliable.

[0021] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly. The PTC heating assembly includes a first fixing member and a second fixing member. Along the third direction, the first fixing member and the second fixing member are provided at opposite ends of the non-metallic housing. The first fixing member is detachably connected to the metal housing, the second fixing member is detachably connected to the non-metallic housing, and the second fixing member is not connected to the metal housing. Along the third direction, one end of the metal housing away from the first fixing member abuts against the first end cover.

[0022] With the above technical solution, the first fixing member and the second fixing member are provided at opposite ends of the non-metallic housing and are jointly used to fix the heating part. And the first fixing member is detachably connected to the metal housing, the second fixing member is detachably connected to the non-metallic housing, and the second fixing member is not connected to the metal housing. During assembly, only need to insert the heating component into the installation cavity, then connect the first fixing member to the metal housing and connect the first fixing member to the non-metallic housing at the same time, and the assembly can be completed. At this time, one end of the metal housing away from the first fixing member abuts against the second fixing member. It is possible to fix the metal housing in the first cavity without connecting the second fixing member to the metal housing, which can reduce the assembly steps and improve the work efficiency.

[0023] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly. The PTC heating assembly includes a liquid inlet part and a liquid outlet part. Along the third direction, the liquid inlet part is provided on one side of the non-metallic housing close to the first fixing member, and the liquid outlet part is provided on one side of the non-metallic housing close to the second fixing member; or,

[0024] The liquid inlet part is arranged on one side of the non-metallic housing close to the second fixing member, and the liquid outlet part is arranged on one side of the non-metallic housing close to the first fixing member.

[0025] With the above technical solution, the liquid inlet part and the liquid outlet part are arranged at intervals in the second direction, which can extend the flow path of the fluid in the flow channel and enable the fluid to be fully heated.

[0026] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly, which includes a third fixing member. The third fixing member is arranged in a fitting manner with the first fixing member, and the first fixing member, the third fixing member and the non-metallic housing are detachably connected through a first connecting member.

[0027] With the above technical solution, the first fixing member, the third fixing member and the non-metallic housing are detachably connected through the first connecting member, which can further enhance the structural stability of the heating assembly, and can connect the three together without additional connecting members, which can simplify the assembly process and improve work efficiency.

[0028] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly. The first fixing member includes a first through hole, the second fixing member includes a second through hole, and the third fixing member includes a third through hole. Along the third direction, one end of the second cavity is communicated with the first through hole and the third through hole, and the other end of the second cavity is communicated with the second through hole for inserting or pulling out an expansion tooling.

[0029] With the above technical solution, after the heating part, the first fixing member, the second fixing member and the third fixing member are all assembled, the expansion tooling can be inserted into the second cavity to simultaneously make multiple heating components fit with the installation cavity. After this operation is completed, the expansion tooling can be pulled out of the second cavity to reduce the weight of the PTC heating assembly, meeting the requirements of lightweight design.

[0030] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating assembly. Along the third direction, a first sealing part is arranged between the third fixing member and the non-metallic housing for sealing the connection between the third fixing member and the non-metallic housing. A second sealing part is arranged between the first fixing member and the third fixing member for sealing the connection between the first fixing member and the third fixing member. A third sealing part is arranged between the second fixing member and the non-metallic housing for sealing the connection between the second fixing member and the non-metallic housing.

[0031] By adopting the above technical solution, the waterproof sealing performance of the heating component can be effectively improved by setting the first sealing part, the second sealing part and the third sealing part.

[0032] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a PTC heating component, the first fixing member includes a flange, the second fixing member includes a first end cover, and the third fixing member includes a second end cover.

[0033] An embodiment of the present invention also discloses a water tank, and the water tank at least includes the PTC heating component in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Showing the schematic structural diagram of the heater in some embodiments.

[0035] Figure 2 Showing the three-dimensional schematic diagram of the PTC heating component provided by the embodiment of the present application.

[0036] Figure 3 Showing the cross-sectional view of the PTC heating component provided by the embodiment of the present application.

[0037] Figure 4 Showing the exploded view of the PTC heating component provided by the embodiment of the present application.

[0038] Figure 5 Showing the schematic structural diagram of the heating component of the PTC heating component provided by the embodiment of the present application.

[0039] Figure 6 Showing the exploded view of the heating component of the PTC heating component provided by the embodiment of the present application.

[0040] Figure 7 Showing the semi-sectional schematic view of the PTC heating component provided by the embodiment of the present application.

[0041] Figure 8 Showing the schematic diagram of the PTC heating component provided by the embodiment of the present application horizontally placed in the water tank.

[0042] Figure 9 Showing the schematic diagram of the PTC heating component provided by the embodiment of the present application vertically placed in the water tank.

[0043] Figure 10 Showing the schematic diagram of the PTC heating component provided by the embodiment of the present application obliquely placed in the water tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The following describes the implementation manners of the present utility model through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Although the description of the present utility model will be introduced in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this implementation manner. On the contrary, the purpose of introducing the utility model in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without these details. In addition, in order to avoid confusing or obscuring the key points of the present utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0045] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0047] Terms such as "first", "second", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0048] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0049] To make the purpose, technical solutions, and advantages of the present utility model clearer, the following will further describe the implementation manners of the present utility model in detail with reference to the drawings.

[0050] In some embodiments, refer to Figure 1, the heater 1 includes a housing 10 and a plurality of heating cores 11. The plurality of heating cores 11 are arranged in parallel at intervals along the first direction X inside the housing 10, and a plurality of fluid channels 12 are formed inside the housing 10. Adopting this technical solution has at least the following deficiencies:

[0051] ① The entire heater 1 occupies a large space in the first direction X, which is not convenient for installation and carrying.

[0052] ② During assembly, it is necessary to fix and assemble each heating core 11 by pressing respectively, and the operation steps are cumbersome and the work efficiency is low. The pressing operation is specifically as follows: Along the first direction X, use a pressing tooling to apply a pressure from the fluid channel 12 towards the heating core 11 to fix the heating core 11 in the fluid channel 12.

[0053] The present application provides a PTC heating assembly 100. In some embodiments, refer to Figure 2 , Figure 3 , Figure 4 , the PTC heating assembly 100 includes a non-metallic housing 20, a heating part 30 and a plurality of heating components 40. Exemplarily, the non-metallic housing 20 is made of plastic. Among them, the non-metallic housing 20 includes a first cavity 201, the heating part 30 is arranged in the first cavity 201, along the first direction X, the heating part 30 is spaced from the non-metallic housing 20, the heating part 30 includes a metal housing 301 and a plurality of installation cavities 302, and a flow channel 202 is formed between the metal housing 301 and the non-metallic housing 20. Each heating component 40 includes a connecting part 400 extending along the third direction Z and protruding from the non-metallic housing 20 for connecting with a control device (not shown in the figure).

[0054] Exemplarily, the flow channel 202 is jointly defined by the metal housing 301 and the non-metallic housing 20. Along the second direction Y, a plurality of installation cavities 302 enclose a second cavity 303 inside the metal housing 301. The plurality of installation cavities 302 are not parallel, and each installation cavity 302 extends along the third direction Z; each heating component 40 is correspondingly arranged in each installation cavity 302. Exemplarily, each heating component 40 is directly attached to each installation cavity 302.

[0055] Adopting the above technical solution, a plurality of installation cavities 302 are arranged around the metal housing 301 along the second direction Y, and each installation cavity 302 extends along the third direction Z; each heating component 40 is correspondingly attached to each installation cavity 302. In this way, on the one hand, the plurality of heating components 40 do not need to be arranged in parallel at intervals, and the space occupation can be reduced without reducing the number of heating components 40. At the same time, a flow channel 202 is formed between the heating part 30 and the non-metallic housing 20, and the fluid can directly contact the metal housing 301 of the heating part 30 in the flow channel 202, and a good heating effect can be maintained.

[0056] On the other hand, a plurality of mounting cavities 302 form a second cavity 303 within the metal housing 301. During assembly, an expansion tooling can be inserted into the second cavity 303. The expansion tooling expands in the first direction X towards the non-metal housing 20 within the second cavity 303, enabling a plurality of heating components 40 to be simultaneously arranged in contact with the mounting cavities 302, eliminating the need for individual fitting operations for each heating component 40 and effectively improving work efficiency.

[0057] Exemplarily, the non-metal housing 20 is cylindrically shaped. In this case, the aforementioned first direction X is the radial direction, the second direction Y is the circumferential direction, and the third direction Z is the axial direction. It can be understood that the shape of the non-metal housing 20 is not limited in this application. For example, it can also be cuboid-shaped or other shapes.

[0058] In some embodiments, referring to Figure 3 、 Figure 4 、 Figure 5 and in combination with Figure 2 , each mounting cavity 302 includes an end portion 30201 and a tail portion 30202. The end portion 30201 of each mounting cavity 302 is adjacent to the tail portion 30202 of an adjacent mounting cavity 302. The projections of the plurality of heating components 40 in the third direction Z are polygonal. Exemplarily, the heating portion 30 includes 3 mounting cavities 302, and the PTC heating assembly 100 includes 3 heating components 40. Each heating component 40 is correspondingly arranged in contact with each mounting cavity 302. Each heating component 40 is cuboid-shaped, and each mounting cavity 302 is a hollow cuboid-shaped. It can be understood that the shapes of the mounting cavity 302 and the heating component 40 are not limited in this application. For example, the heating component 40 can be cylindrically shaped, and in this case, the mounting cavity 302 is correspondingly a hollow cylindrically shaped.

[0059] Further, the 3 heating components 40 are defined as a first heating component 41, a second heating component 42, and a third heating component 43, and the 3 mounting cavities 302 are defined as a first mounting cavity 3021, a second mounting cavity 3022, and a third mounting cavity 3023. As shown in Figure 5 , the first heating component 41 is arranged in contact with the first mounting cavity 3021, the second heating component 42 is arranged in contact with the second mounting cavity 3022, and the third heating component 43 is arranged in contact with the third mounting cavity 3023. The end portion 30201 of the first heating component 41 is arranged close to the tail portion 30202 of the second heating component 42, the end portion 30201 of the second heating component 42 is arranged close to the tail portion 30202 of the third heating component 43, and the end portion 30201 of the third heating component 43 is arranged close to the tail portion 30202 of the first heating component 41. The projections of the first heating component 41, the second heating component 42, and the third heating component 43 in the third direction Z are triangular.

[0060] Understandably, the present application does not limit the number of the installation cavities 302 and the heating components 40. For example, in some embodiments, the PTC heating component 100 includes 4 installation cavities 302 and 4 heating components 40, and the projections of the 4 heating components 40 in the third direction Z are quadrilateral. Similarly, the PTC heating component 100 may also include 2, 5, 6, 7, 8, 9, 10 heating components 40, and 2, 5, 6, 7, 8, 9, 10 installation cavities 302, as long as each installation cavity 302 corresponds to each heating component 40 one by one.

[0061] In some embodiments, referring to Figure 3 , Figure 5 , Figure 6 , each heating component 40 includes a PTC heating core 401 and an insulating part 402. The insulating part 402 is sleeved on the surface 4011 of the PTC heating core 401, and the insulating part 402 is fitted on the inner wall of the installation cavity 302. Exemplarily, the insulating part 402 can be any one of an insulating film, an insulating plastic, and an insulating paper. Exemplarily, the heating part 30 includes an insulating layer 31, and the insulating layer 31 is provided on the surface of the metal shell 301, and the fluid flowing into the flow channel 202 can contact the insulating layer 31.

[0062] This solution designs a non-metal shell 20, and a flow channel 202 is formed in the first cavity 201 of the non-metal shell 20 for fluid to pass through. The non-metal shell 20 can effectively gather heat and prevent the heat from being conducted to the outside through the shell, thereby improving the heating efficiency. At the same time, an insulating film and a metal shell 301 are sequentially arranged around the heating core, and an insulating layer 31 is provided on the surface of the metal shell 301 to enhance the corrosion resistance and high-voltage resistance of the heating device, and can also prevent scale from accumulating on the surface of the metal shell 301. The fluid flowing into the first cavity 201 can fully contact the insulating layer 31, and even if it is soaked in water for a long time, the situation of corrosion or electric leakage of the heating component 40 will not occur.

[0063] Exemplarily, the insulating layer 31 includes a polymer coating 311, and the polymer coating 311 includes a liquid coating or a solid coating or a paste coating. By adopting the above technical solution, the good corrosion resistance and high-voltage resistance of the polymer material are utilized to further make the use of the heater safer and more reliable.

[0064] In some embodiments, referring to Figure 4 and combining with Figure 7, the PTC heating component 100 includes a first fixing member 51, a second fixing member 52, and a third fixing member 53. Among them, the third fixing member 53 is arranged in contact with the first fixing member 51. The first fixing member 51, the third fixing member 53, and the non-metallic housing 20 are detachably connected by a first connecting member 501. The first fixing member 51 and the metal housing 301 are detachably connected by a second connecting member 502. The second fixing member 52 and the non-metallic housing 20 are detachably connected by a third connecting member 503. Along the third direction Z, the first fixing member 51 and the second fixing member 52 are arranged at opposite ends of the non-metallic housing 20, and the second fixing member 52 is not connected to the metal housing 301. Exemplarily, the first fixing member 51 includes a flange, the second fixing member 52 includes a first end cap, and the third fixing member 53 includes a second end cap.

[0065] In some embodiments, referring to Figure 4 , the first fixing member 51 includes a first through hole 511, the second fixing member 52 includes a second through hole 521, and the third fixing member includes a third through hole 531. Along the third direction Z, one end of the second cavity 303 is communicated with the first through hole 511 and the third through hole 531, and the other end of the second cavity 303 is communicated with the second through hole 521 for inserting or pulling out the expansion tooling.

[0066] Exemplarily, there are a plurality of first connection holes 512 and a plurality of second connection holes 513. The first through hole 511 is correspondingly arranged with the second cavity 303. The plurality of first connection holes 512 are arranged around the first through hole 511 along the third direction Z for inserting the first connecting member 501. The plurality of second connection holes 513 are arranged around the first through hole 511 along the third direction Z for inserting the second connecting member 502. And along the first direction X, the second connection holes 513 are arranged between the first through hole 511 and the first connection holes 512. Exemplarily, as Figure 4 shown, along the dotted line a, the first fixing member 51, the third fixing member 53, and the non-metallic housing 20 are assembled by the first connecting member 501. Along the dotted line b, the first fixing member 51 and the non-metallic housing 20 are assembled by the second connecting member 502.

[0067] Continuing to refer to Figure 4 , the second fixing member 52 includes a plurality of third connection holes 522. The plurality of third connection holes 522 are arranged around the second through hole 521 along the third direction Z for inserting the third connecting member 503. The third fixing member 53 includes a plurality of fourth connection holes 532. The plurality of fourth connection holes 532 are arranged around the third through hole 531 along the third direction Z for inserting the first connecting member 501. Exemplarily, as Figure 4 shown, along the dotted line c, the second fixing member 52 and the non-metallic housing 20 are assembled by the third connecting member 503.

[0068] With the above technical solution, after inserting the expansion tooling into the second cavity 303, the pressing operation is performed on multiple heating components 40 simultaneously, improving the working efficiency. After the pressing is completed, it is convenient to withdraw the expansion tooling, avoiding increasing the weight of the PTC heating component. Then, the second cavity 303 penetrates the entire non-metallic housing 20 along the second direction Y, and the entire PTC heating component is assembled.

[0069] Exemplarily, referring to Figure 4 , the first connecting member 501, the second connecting member 502, and the third connecting member 503 are all bolts. The number of the first connecting holes 512 and the third connecting holes 522 is 4, and the number of the second connecting holes 513 is 3. Correspondingly, the number of the first connecting members 501 and the third connecting members 503 is 4, and the number of the second connecting members 502 is 3. It can be understood that the present application does not limit the number of the first connecting holes 512, the second connecting holes 513, the third connecting holes 522, the first connecting members 501, the second connecting members 502, and the third connecting members 503, and for example, the number can be 2, 3, 4, 5, 6, 7, etc. In addition, the first connecting member 501, the second connecting member 502, and the third connecting member 503 are not limited to bolts, and for example, they can also be connecting members such as screws.

[0070] In some embodiments, referring to Figure 3 , Figure 4 and combining with Figure 7 , along the third direction Z, a first sealing portion 61 is provided between the third fixing member 53 and the non-metallic housing 20 for sealing the connection between the third fixing member 53 and the non-metallic housing 20. A second sealing portion 62 is provided between the first fixing member 51 and the third fixing member 53 for sealing the connection between the first fixing member 51 and the third fixing member 53. A third sealing portion 63 is provided between the second fixing member 52 and the non-metallic housing 20 for sealing the connection between the second fixing member 52 and the non-metallic housing 20.

[0071] Exemplarily, referring to Figure 3 , Figure 4 , Figure 6 and combining with Figure 7, the first sealing portion 61, the second sealing portion 62, and the third sealing portion 63 are all annular sealing rings. The first sealing portion 61 is disposed around the outer surface 203 of the non-metallic housing 20 along the second direction Y. When the third fixing member 53 is connected to the non-metallic housing 20, the first sealing portion 61 can be used to prevent the fluid in the flow channel 202 from flowing out from the connection between the third fixing member 53 and the non-metallic housing 20. The second sealing portion 62 is disposed around the insulating layer 31 of the metal housing 301 along the second direction Y. When the first fixing member 51 is connected to the third fixing member 53, the second sealing portion 62 can be used to prevent the fluid in the flow channel 202 from flowing out from the connection between the first fixing member 51 and the third fixing member 53. The third sealing portion 63 is disposed around the insulating layer 31 of the metal housing 301 along the second direction Y. When the second fixing member 52 is connected to the non-metallic housing 20, the third sealing portion 63 can be used to prevent the fluid in the flow channel 202 from flowing out from the connection between the second fixing member 52 and the non-metallic housing 20.

[0072] In some embodiments, referring to Figure 7 and in combination with Figure 4 , the PTC heating assembly 100 includes a liquid inlet portion 70 and a liquid outlet portion 71. The liquid inlet portion 70 is disposed on one side of the non-metallic housing 20 close to the second fixing member 52, and the liquid outlet portion 71 is disposed on one side of the non-metallic housing 20 close to the first fixing member 51. Alternatively, along the third direction Z, the liquid inlet portion 70 is disposed on one side of the non-metallic housing 20 close to the first fixing member 51, and the liquid outlet portion 71 is disposed on one side of the non-metallic housing 20 close to the second fixing member 52.

[0073] Exemplarily, referring to Figure 7 and in combination with Figure 4 , the liquid inlet portion 70 includes a liquid inlet channel 701. The liquid inlet direction of the liquid inlet channel 701 is parallel to the second direction Y. The liquid outlet portion 71 includes a liquid outlet channel 711. The liquid outlet direction of the liquid outlet channel 711 is parallel to the first direction X. The liquid inlet portion 70 and the liquid outlet portion 71 are spaced apart in the third direction Z, which can extend the flow path of the fluid in the flow channel 202 and enable the fluid to be fully heated. Exemplarily, referring to Figure 7 , the fluid flows into the flow channel 202 along the arrow e through the liquid inlet channel 701 and finally flows out through the liquid outlet channel 711.

[0074] In some embodiments, referring to Figure 8 , Figure 9 , Figure 10, this application provides a pool 200, which at least includes the PTC heating component 100 in any of the foregoing embodiments. The PTC heating component 100 is provided on the side of the pool 200. The pool 200 further includes a control device (not shown in the figure), and the control device is electrically connected to the PTC heating component 100. Exemplarily, the liquid outlet part 71 of the PTC heating component 100 communicates with the water-containing space 300 of the pool 200 for introducing the heated fluid into the water-containing space 300. The control device and the PTC heating component 100 are electrically connected through a cable. The control device may further include a single-chip microcomputer, and functions such as turning on or off the heating of the PTC heating component 100 are realized by outputting high and low levels through the single-chip microcomputer.

[0075] Due to the small occupied space, the PTC heating component 100 provided in this application can be horizontally placed (as Figure 8 shown), vertically placed (as Figure 9 shown), or obliquely placed (as Figure 10 shown) on the side of the pool 200, and has a flexible installation method.

[0076] Although the present invention has been illustrated and described by referring to some preferred embodiments of the present invention, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A PTC heating component, characterized in that, Comprising: A non-metallic housing, the non-metallic housing including a first cavity; A heating part, the heating part being disposed in the first cavity, along a first direction, the heating part being spaced apart from the non-metallic housing, the heating part including a metal housing and a plurality of mounting cavities, a flow channel being formed between the metal housing and the non-metallic housing, along a second direction, the plurality of mounting cavities enclosing a second cavity within the metal housing, the plurality of mounting cavities not being parallel, each mounting cavity extending along a third direction; A plurality of heating components, each heating component being correspondingly disposed in each mounting cavity.

2. The PTC heating component according to claim 1, wherein Each heating component is directly attached and disposed in each mounting cavity.

3. The PTC heating component according to claim 1, characterized in that, Each mounting cavity includes an end portion and a tail portion, the end portion of each mounting cavity being adjacent to the tail portion of an adjacent mounting cavity, the projection of the plurality of heating components in the third direction being polygonal.

4. The PTC heating component according to claim 3, characterized in that, The projection of the plurality of heating components in the third direction is triangular.

5. The PTC heating component according to any one of claims 1-4, characterized in that The heating part includes an insulating layer, the insulating layer being disposed on the surface of the metal housing, and the fluid flowing into the flow channel can contact the insulating layer.

6. The PTC heating component according to claim 5, wherein The insulating layer includes a polymer coating, and the polymer coating includes any one of a liquid coating, a solid coating, or a paste coating.

7. The PTC heating component according to any one of claims 1-4, characterized in that Including a first fixing member and a second fixing member, along the third direction, the first fixing member and the second fixing member are disposed at opposite ends of the non-metallic housing, the first fixing member is detachably connected to the metal housing, the second fixing member is detachably connected to the non-metallic housing, and the second fixing member is not connected to the metal housing, along the third direction, one end of the metal housing away from the first fixing member abuts against the second fixing member.

8. The PTC heating component according to claim 7, characterized in that, Including a liquid inlet part and a liquid outlet part, along the third direction, the liquid inlet part is disposed on one side of the non-metallic housing close to the first fixing member, and the liquid outlet part is disposed on one side of the non-metallic housing close to the second fixing member; or, The liquid inlet part is disposed on one side of the non-metallic housing close to the second fixing member, and the liquid outlet part is disposed on one side of the non-metallic housing close to the first fixing member.

9. The PTC heating component according to claim 7, wherein Including a third fixing member, the third fixing member is disposed in a fitting manner with the first fixing member, and the first fixing member, the third fixing member, and the non-metallic housing are detachably connected by a first connecting member.

10. The PTC heating component according to claim 9, wherein, The first fixing member includes a first through hole, the second fixing member includes a second through hole, the third fixing member includes a third through hole, along the third direction, one end of the second cavity communicates with the first through hole and the third through hole, and the other end of the second cavity communicates with the second through hole for inserting or pulling out an expansion tooling.

11. The PTC heating component according to claim 9, characterized in that, Along the third direction, a first sealing portion is provided between the third fixing member and the non-metallic housing for sealing the connection between the third fixing member and the non-metallic housing, a second sealing portion is provided between the first fixing member and the third fixing member for sealing the connection between the first fixing member and the third fixing member, and a third sealing portion is provided between the second fixing member and the non-metallic housing for sealing the connection between the second fixing member and the non-metallic housing.

12. The PTC heating component according to claim 9, wherein, The first fixing member includes a flange, the second fixing member includes a first end cap, and the third fixing member includes a second end cap.

13. A pool, characterized in that, It includes the PTC heating assembly according to any one of claims 1-12.

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